Light Path Diagnostics Table - IBM eServer 232 xSeries User Reference Manual

Light Path Diagnostics table

The System Error LED on the operator information panel is lit when certain system
errors occur. If the System Error LED on your server is lit, use the following table to
help determine the cause of the error and the action you should take.
Table 16. Light path diagnostics.
Lit LED on
diagnostics
panel
PS1 Power supply 1 has failed.
PS2 Power supply 2 has failed.
PS3 Power supply 3 has failed.
NON Power supply redundancy has been
lost.
Note: This LED will not be lit if
your server has only one
power supply; however, the
power is not redundant with
only one power supply
installed.
OVER The system has exceeded the power
capabilities of the installed power
supply.
NMI A nonmaskable interrupt occurred.
TEMP The system temperature has
exceeded a threshold level.
FAN A fan has failed or is operating too
slowly.
Note: A failing fan can also cause
the TEMP LED to be on.
MEM A memory error occurred.
Cause
Replace power supply 1.
Replace power supply 2.
Replace power supply 3.
•
•
Install an optional additional power
supply, or remove optional devices
from the server.
1.
2.
If the problem persists, have the
system serviced.
1.
2.
If the problem persists, have the
system serviced.
Check the LEDs on the fan
assemblies and replace the indicated
fan assembly.
1.
2.
Action
Check the PS1, PS2, and PS3
LEDs and replace any indicated
power supply.
Install an additional power supply
or remove optional devices from
the server.
If the PCI A, PCI B, or PCI C LED
is on, follow the instructions for
those LEDs.
If the PCI A, PCI B or PCI C LED
is not on, restart the server.
Check to see if a fan has failed. If
it has, replace the fan.
Make sure the room temperature
is not too hot. (See "Features and
specifications" on page 2.)
Check the DIMM failure LEDs on
the system board.
Replace the DIMM indicated by
the lit DIMM failure LED.
Chapter 6. Solving Problems
117